Liquid-cooler.



No. 869,089. PATENTED OCT. 22. 1907.

- A. JENSEN.

LIQUID COOLER.

APPLICATION FILED JAN. 17, 1907,

w rwen'tor 4 llneqgw a att 0mg UNITED STATES AAGE JENSEN, OF EUREKA,CALIFORNIA.

LIQUID-COOLER.

Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed anuary 17 1907- Serial No. 352,730.

To all whom it may concern:

Be it known that I, Anon JENSEN, a citizen of the UnitedLStates,residing at Eureka, in the county of Humboldt and State of California,have invented new and useful Improvements in Liquid-Coolers, of whichthe'following is a specification.

This invention relates to an improved liquid cooler, especially adaptedfor cooling milk, cream, beer, or other liquids after having beensubjected to pasteuri' zation or other heating process, although severalof the novel features thereof render the device advantageous for coolingliquids in general.

In the accompanyingdrawing, Figure 1 is a broken side elevation of myimproved cooler; Fig. 2 is a cross section thereof; Fig. 3 is anenlarged sectional view of the bottom of the feed troughs; Fig. 4 is anenlarged sectional view of one of the horizontal cooling pipes; Fig. 5is an enlarged sectional view of aheader.

Referring to the drawing, 1 indicates posts upon which are supported therogenerator 2 and the main cooler 3. Said main cooler consistsof thehorizontal pipes 4 connected at their ends alternately to headers 5,which headers have therein transverse partitions 6, so that thecompartments 42 of said headers form connections upon opposite sidesalternately for the horizontal pipes 4. The brine or other coolingliquid enters by the inlet 8 at the end of the lowest horizontal pipe 4,and transverscs said horizontal pipes and the compartments of theheaders 5, in a tortuous path, leaving the uppermost horizontal pipe bythe outlet 9. The headers 5 are formed of two pieces of sheet metal, theinner piece 10 having a semi-cylindricalfront portion, and its rearedges being bent at right angles to form flanges l1, and around saidflanges are bent the edges of a second fiat piece 12 of sheet metal,forming seams at said edges and rendering the same water tight. Thecooler 3 is supported upon the posts] by {means of brackets 13 securedto the sheet metal backs 32 of the vertical pipes and having splitsleeves 14, by means of which they can be clamped upon said posts adjustably as to height.

The regcnerator comprises end plates 15 between which is secured atortuous regenm'ator sheet 16. Upon the upper ends of the end plates aresecured the castings 17 which support the trough 18. Said regenerator'is swiveled by means of sockets 21 upon pivot pins 20 extending fromsleeves 19 sliding loosely upon the posts 1. It is supported by means ofcastings 22 secured on the bottom of the regenerator sheet 16, and having recessed lower edges 23, which rest upon the top of the uppermostpipe 4 of; the cooler. With this construction the regencrator can'bcquickly removed by sliding it. upwards from the posts.

The trough 18 is divided into two troughs or compartments by a centralpartition 24. and the hot milk, cream, or other liquid which has beenpasteurized is fed into the compartment 25, shown on the right in Figs.2

sheet and by reason of the tenuity of the film adhering to the sheet onthe underside thereof, and thus it traverses the whole extent of thesheet. In doing so it gives up a considerable part of its heat to theplate, and this heat is utilized to warm the liquid which it is desiredto subject to the process of pasteurization or the like. This'coolliquid is supplied to the other compartment 28, that on the left in Fig.3, and falls through similar apertures 26 at the bottom thereof on tothe other side of the regenerating sheet 16, and traverses the whole ofsaid other side in like manner as did the hot liquid, then passing intoa trough 36 formed at the bottom of the regenerating sheet, and beingdischarged therefrom by an outlet 30. Bymeans of this device, notonlyisthe heat of the liquid that has been pasteurized or otherwiseheated utilized to warm the liquid that is to be subjected to the sameprocess and thus economizes heat in this way, but the cold liquidabstracts the heat from the already pasteurized liquid, and serves topartly cool the same. This partly cooled liquid, upon arriving at thebottom of the regcnerator, flows on to a lip 31 depending from thelowest surface thereof and drops therefrom on to the middle of theuppermost horizontal pipe, and flows down on both sides of said pipe onto the next horizontal pipe. The horizontal pipes are each formed with adepending lip 32 shown in detail in Fig. 4, said lip being formed byseaming one edge of the sheet metal around the other. This lip extendsto close proximity to the top of the horizontal cooling pipe immediatelybelow it, so that the liquid passes from the lip to said pipe withoutsplashing. But for said lip, the particles of liquid would tend tocollect in globules before dropping, which globules in dropping wouldsplash, thus preventing the distribution of the liquid in the thin filmwhich'is so necessary for the rapid cooling thereof. Moreover, theselips increase the extent of the cooling surface, and render theapparatus more efficient for its size. The cool liquid flows off by thepipe 33.

The main cooler is supported upon the posts adjustably because it isintended to be used in combination with a centrifugal pasteurizer, whichreceives the liquid at the bottom, and by centrifugal force causes it tobe discharged at a point as high as the top of the cooler. It istherefore important to be able to adjust the height of the cooler sdthat the liquid can be taken in the above the lower portion, the upperportion is also adjusted .secured to the posts and supported on the maincooler, said regenerator being constructed to receive hot and coldliquids and to conduct the partly cooled hot liquid to the main cooler,substantially as described.

2. In a liquid cooler, in combination with posts, a main coolersupported on said posts, and a regenerator slidably secured to the postsand supported on the main cooler, said regenerator comprising twocompartments adapted to receive respectively hot and cold liquids, eachcompartment having at regular intervals in the bottom thereof aperturesformed in the bottom of depressions and a tortuous regenerator sheet onto opposite sides of which the liquid falls and on which they travel,substantiallvas described.

3. In a liquid cooler, in combination with posts, a main coolersupported on said posts, and a regenerator slidahly' secured to theposts and supported on the main cooler, said regenerator comprisingtwocompartments adapted to receive respectively hot and cold li'quids, eachcompartment having at regular intervals in the bottom thereof aperturesformed in the .bottom of depressions and a regenerating element havingan extended area on to opposite sides of which said element hot and coldliquids pass, and constructed to deliver the hot liquid to the' maincooler, substantially as described.

4. In a liquid cooler; in combinationwith posts, a main cooler supportcdon said posts, and a regenerator slidahly secured to the posts andsupported on the main cooler, said regenerator comprising twocompartments adapted to receive respectively hot and cold liquids, eachcompartment having at regutar intervals in the bottom thereof aperturesformed in the bottom of depressions and a-regenerati ng element havingan extended area on to opposite sides of which said element hot and.cold liquids pass, and having a lip depending from the lowest portionthereof, and extending into close proximity with the main cooler todeliver the hot liquid thereto without splashing, substantially asdescribed.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

AAGE JENSEN.

Witnesses FRANK Nazuof J. M. NISSON.

